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Talc Psm Tremolite

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SCH206713

Talc Psm Tremolite

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Description
Locality: 
Altermark, Rana, Nordland, Norway
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.1 × 1.1 cm
Description

Interesting specimen of talc pseudomorph after tremolite crystals from an old collection.

Mineral Data
What's on the rock

Talc

Formula: 
Mg3(Si4O10)(OH)2
Strunz: 
9.EC.05
Crystal System: 
Triclinic
Hardness: 
1.0
Streak: 
White

Tremolite

Formula: 
☐{Ca2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0
Streak: 
White
Type Locality: 
Campolungo, Piumogna Valley, Leventina, Ticino (Tessin), Switzerland
schani

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